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ID 11822
Eprint ID
11822
FullText URL
Title Alternative
Sarcoidosis and Propionibacterium acnes
Author
Nakata, Yasunari
Kimura, Ikuro
Abstract
Although there have been numerous reports on the isolation of bacteria, fungus, and aetiological agents of chemical substances from specimens of patients with sarcoidosis, none of them have been substantiated. In any event, an understanding of the pathogenesis of pulmonary sarcoid is intimately linked to that of the processes involved in the accumulation of T-cells in the lower respiratory tract of individuals with sarcoidosis. Propionibacterium acnes was isolated at high rates and in high concetrations from lymph nodes in patients with sarcoidosis. However, the precise mechanism of granuloma formation and immunomodulation by P. acnes has not been elucidated yet. In patients with sarcoidosis, it was found that the high levels of interleukin-2 (IL-2) released from alveolar lymphocytes as well as interleukin-1, tumor necrosis factor (TNF) and interleukin-6 (IL-6) released from alveolar macrophages were stimulated by P. acnes. These cytokines (mainly IL-2), released by P. acnes in large quantities, play a major role in the compartmentalization of the T-cell population in the lung and lead to the formation of an alveolitis and granuloma in the lung parenchyma of patients with sarcoidosis. This paper focuses primarily on the role of the cytokine network in the pulmonary mononuclear cells in the lung of patients with sarcoidosis.
Keywords
sarcoidosis
macrophage
T-cell
interleukin-2
Propionibacterium acnes
Published Date
1993-01-31
Publication Title
岡山大学医療技術短期大学部紀要
Publication Title Alternative
Bulletin of School of Health Sciences Okayama University
Volume
volume3
Publisher
岡山大学医療技術短期大学部
Publisher Alternative
School of Health Sciences Okayama University
Start Page
19
End Page
36
ISSN
0917-4494
NCID
AN10355371
Content Type
Departmental Bulletin Paper
language
日本語
File Version
publisher
Refereed
False
Eprints Journal Name
fhs